Monday, January 16, 2012

Email 4984, June 2008: John Finn presents Phil Jones with some inconvenient data that "doesnt seem to square with the aerosol cooling theory"

So now consider the following data which is from the GISS(land-only) surface temperature record.

64N-90N -0.9344N-64N -0.1724N-44N -0.2124N-EQU -0.09

The figures show the total cooling for each latitude band for the 32 year period between1944 and 1975. Note that the cooling is greatest (by far) in the latitudes north of 64deg and that cooling tends to be less as we get closer to the equator. This is almost amirror image of the warming since 1975, i.e. greatest warming at northerly latitudes andless at the equator. But the important point is that the mid latitudes which include thebig post-war industrialised regions (US and Europe) experienced much less cooling thanthe non-industrialised Arctic regions.